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gdb: add target_ops::supports_displaced_step
[deliverable/binutils-gdb.git] / opcodes / mep-dis.c
CommitLineData
4162bb66 1/* DO NOT EDIT! -*- buffer-read-only: t -*- vi:set ro: */
bd2f2e55
DB		 2/* Disassembler interface for targets using CGEN. -*- C -*-
3 CGEN: Cpu tools GENerator
4
5 THIS FILE IS MACHINE GENERATED WITH CGEN.
6 - the resultant file is machine generated, cgen-dis.in isn't
7
b3adc24a 8 Copyright (C) 1996-2020 Free Software Foundation, Inc.
bd2f2e55 9
9b201bb5 10 This file is part of libopcodes.
bd2f2e55 11
9b201bb5 12 This library is free software; you can redistribute it and/or modify
bd2f2e55 13 it under the terms of the GNU General Public License as published by
9b201bb5 14 the Free Software Foundation; either version 3, or (at your option)
bd2f2e55
DB		 15 any later version.
16
9b201bb5
NC		 17 It is distributed in the hope that it will be useful, but WITHOUT
18 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
19 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
20 License for more details.
bd2f2e55
DB		 21
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software Foundation, Inc.,
24 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
25
26/* ??? Eventually more and more of this stuff can go to cpu-independent files.
27 Keep that in mind. */
28
29#include "sysdep.h"
30#include <stdio.h>
31#include "ansidecl.h"
7639175c 32#include "disassemble.h"
bd2f2e55
DB		 33#include "bfd.h"
34#include "symcat.h"
35#include "libiberty.h"
36#include "mep-desc.h"
37#include "mep-opc.h"
38#include "opintl.h"
39
40/* Default text to print if an instruction isn't recognized. */
41#define UNKNOWN_INSN_MSG _("*unknown*")
42
43static void print_normal
44 (CGEN_CPU_DESC, void *, long, unsigned int, bfd_vma, int);
45static void print_address
46 (CGEN_CPU_DESC, void *, bfd_vma, unsigned int, bfd_vma, int) ATTRIBUTE_UNUSED;
47static void print_keyword
48 (CGEN_CPU_DESC, void *, CGEN_KEYWORD *, long, unsigned int) ATTRIBUTE_UNUSED;
49static void print_insn_normal
50 (CGEN_CPU_DESC, void *, const CGEN_INSN *, CGEN_FIELDS *, bfd_vma, int);
51static int print_insn
52 (CGEN_CPU_DESC, bfd_vma, disassemble_info *, bfd_byte *, unsigned);
53static int default_print_insn
54 (CGEN_CPU_DESC, bfd_vma, disassemble_info *) ATTRIBUTE_UNUSED;
55static int read_insn
56 (CGEN_CPU_DESC, bfd_vma, disassemble_info *, bfd_byte *, int, CGEN_EXTRACT_INFO *,
57 unsigned long *);
58\f
59/* -- disassembler routines inserted here. */
60
61/* -- dis.c */
62
63#include "elf/mep.h"
64#include "elf-bfd.h"
65
66#define CGEN_VALIDATE_INSN_SUPPORTED
67
68static void print_tpreg (CGEN_CPU_DESC, PTR, CGEN_KEYWORD *, long, unsigned int);
69static void print_spreg (CGEN_CPU_DESC, PTR, CGEN_KEYWORD *, long, unsigned int);
70
71static void
72print_tpreg (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, PTR dis_info,
73 CGEN_KEYWORD *table ATTRIBUTE_UNUSED, long val ATTRIBUTE_UNUSED,
74 unsigned int flags ATTRIBUTE_UNUSED)
75{
76 disassemble_info *info = (disassemble_info *) dis_info;
77
78 (*info->fprintf_func) (info->stream, "$tp");
79}
80
81static void
43e65147 82print_spreg (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, PTR dis_info,
bd2f2e55
DB		 83 CGEN_KEYWORD *table ATTRIBUTE_UNUSED, long val ATTRIBUTE_UNUSED,
84 unsigned int flags ATTRIBUTE_UNUSED)
85{
86 disassemble_info *info = (disassemble_info *) dis_info;
87
88 (*info->fprintf_func) (info->stream, "$sp");
89}
90
91/* begin-cop-ip-print-handlers */
3526b680
DD		 92static void
93print_ivc2_cr (CGEN_CPU_DESC,
94 void *,
95 CGEN_KEYWORD *,
96 long,
97 unsigned int) ATTRIBUTE_UNUSED;
98static void
99print_ivc2_cr (CGEN_CPU_DESC cd,
100 void *dis_info,
101 CGEN_KEYWORD *keyword_table ATTRIBUTE_UNUSED,
102 long value,
103 unsigned int attrs)
104{
105 print_keyword (cd, dis_info, & mep_cgen_opval_h_cr_ivc2, value, attrs);
106}
107static void
108print_ivc2_ccr (CGEN_CPU_DESC,
109 void *,
110 CGEN_KEYWORD *,
111 long,
112 unsigned int) ATTRIBUTE_UNUSED;
113static void
114print_ivc2_ccr (CGEN_CPU_DESC cd,
115 void *dis_info,
116 CGEN_KEYWORD *keyword_table ATTRIBUTE_UNUSED,
117 long value,
118 unsigned int attrs)
119{
120 print_keyword (cd, dis_info, & mep_cgen_opval_h_ccr_ivc2, value, attrs);
121}
bd2f2e55
DB		 122/* end-cop-ip-print-handlers */
123
124/************************************************************\
125*********************** Experimental *************************
126\************************************************************/
127
128#undef CGEN_PRINT_INSN
129#define CGEN_PRINT_INSN mep_print_insn
130
131static int
132mep_print_vliw_insns (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info,
133 bfd_byte *buf, int corelength, int copro1length,
134 int copro2length ATTRIBUTE_UNUSED)
135{
136 int i;
137 int status = 0;
138 /* char insnbuf[CGEN_MAX_INSN_SIZE]; */
139 bfd_byte insnbuf[64];
140
141 /* If corelength > 0 then there is a core insn present. It
142 will be at the beginning of the buffer. After printing
143 the core insn, we need to print the + on the next line. */
144 if (corelength > 0)
145 {
146 int my_status = 0;
43e65147 147
bd2f2e55
DB		 148 for (i = 0; i < corelength; i++ )
149 insnbuf[i] = buf[i];
150 cd->isas = & MEP_CORE_ISA;
43e65147 151
bd2f2e55
DB		 152 my_status = print_insn (cd, pc, info, insnbuf, corelength);
153 if (my_status != corelength)
154 {
155 (*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
156 my_status = corelength;
157 }
158 status += my_status;
159
160 /* Print the + to indicate that the following copro insn is */
161 /* part of a vliw group. */
162 if (copro1length > 0)
43e65147 163 (*info->fprintf_func) (info->stream, " + ");
bd2f2e55
DB		 164 }
165
166 /* Now all that is left to be processed is the coprocessor insns
167 In vliw mode, there will always be one. Its positioning will
168 be from byte corelength to byte corelength+copro1length -1.
169 No need to check for existence. Also, the first vliw insn,
170 will, as spec'd, always be at least as long as the core insn
171 so we don't need to flush the buffer. */
172 if (copro1length > 0)
173 {
174 int my_status = 0;
43e65147 175
bd2f2e55
DB		 176 for (i = corelength; i < corelength + copro1length; i++ )
177 insnbuf[i - corelength] = buf[i];
178
179 switch (copro1length)
180 {
181 case 0:
182 break;
183 case 2:
184 cd->isas = & MEP_COP16_ISA;
185 break;
186 case 4:
187 cd->isas = & MEP_COP32_ISA;
188 break;
189 case 6:
190 cd->isas = & MEP_COP48_ISA;
191 break;
192 case 8:
193 cd->isas = & MEP_COP64_ISA;
43e65147 194 break;
bd2f2e55
DB		 195 default:
196 /* Shouldn't be anything but 16,32,48,64. */
197 break;
198 }
199
200 my_status = print_insn (cd, pc, info, insnbuf, copro1length);
201
202 if (my_status != copro1length)
203 {
204 (*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
205 my_status = copro1length;
206 }
207 status += my_status;
208 }
209
210#if 0
211 /* Now we need to process the second copro insn if it exists. We
212 have no guarantee that the second copro insn will be longer
213 than the first, so we have to flush the buffer if we are have
214 a second copro insn to process. If present, this insn will
215 be in the position from byte corelength+copro1length to byte
216 corelength+copro1length+copro2length-1 (which better equal 8
217 or else we're in big trouble. */
218 if (copro2length > 0)
219 {
220 int my_status = 0;
221
222 for (i = 0; i < 64 ; i++)
223 insnbuf[i] = 0;
224
225 for (i = corelength + copro1length; i < 64; i++)
226 insnbuf[i - (corelength + copro1length)] = buf[i];
43e65147 227
bd2f2e55
DB		 228 switch (copro2length)
229 {
230 case 2:
231 cd->isas = 1 << ISA_EXT_COP1_16;
232 break;
233 case 4:
234 cd->isas = 1 << ISA_EXT_COP1_32;
235 break;
236 case 6:
237 cd->isas = 1 << ISA_EXT_COP1_48;
238 break;
239 case 8:
43e65147 240 cd->isas = 1 << ISA_EXT_COP1_64;
bd2f2e55
DB		 241 break;
242 default:
243 /* Shouldn't be anything but 16,32,48,64. */
244 break;
245 }
246
247 my_status = print_insn (cd, pc, info, insnbuf, copro2length);
248
249 if (my_status != copro2length)
250 {
251 (*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
252 my_status = copro2length;
253 }
254
255 status += my_status;
256 }
257#endif
258
259 /* Status should now be the number of bytes that were printed
260 which should be 4 for VLIW32 mode and 64 for VLIW64 mode. */
261
262 if ((!MEP_VLIW64 && (status != 4)) || (MEP_VLIW64 && (status != 8)))
263 return -1;
264 else
265 return status;
266}
267
43e65147
L		 268/* The two functions mep_examine_vliw[32,64]_insns are used find out
269 which vliw combinaion (16 bit core with 48 bit copro, 32 bit core
270 with 32 bit copro, etc.) is present. Later on, when internally
271 parallel coprocessors are handled, only these functions should
272 need to be changed.
273
274 At this time only the following combinations are supported:
bd2f2e55 275
bd2f2e55
DB		 276 VLIW32 Mode:
277 16 bit core insn (core) and 16 bit coprocessor insn (cop1)
278 32 bit core insn (core)
279 32 bit coprocessor insn (cop1)
280 Note: As of this time, I do not believe we have enough information
281 to distinguish a 32 bit core insn from a 32 bit cop insn. Also,
43e65147 282 no 16 bit coprocessor insns have been specified.
bd2f2e55
DB		 283
284 VLIW64 Mode:
285 16 bit core insn (core) and 48 bit coprocessor insn (cop1)
286 32 bit core insn (core) and 32 bit coprocessor insn (cop1)
287 64 bit coprocessor insn (cop1)
43e65147 288
bd2f2e55 289 The framework for an internally parallel coprocessor is also
43e65147 290 present (2nd coprocessor insn is cop2), but at this time it
bd2f2e55
DB		 291 is not used. This only appears to be valid in VLIW64 mode. */
292
293static int
294mep_examine_vliw32_insns (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info)
295{
296 int status;
297 int buflength;
298 int corebuflength;
299 int cop1buflength;
300 int cop2buflength;
43e65147 301 bfd_byte buf[CGEN_MAX_INSN_SIZE];
bd2f2e55 302 char indicator16[1];
43e65147 303 char indicatorcop32[2];
bd2f2e55
DB		 304
305 /* At this time we're not supporting internally parallel coprocessors,
306 so cop2buflength will always be 0. */
307 cop2buflength = 0;
308
309 /* Read in 32 bits. */
310 buflength = 4; /* VLIW insn spans 4 bytes. */
311 status = (*info->read_memory_func) (pc, buf, buflength, info);
312
313 if (status != 0)
314 {
315 (*info->memory_error_func) (status, pc, info);
316 return -1;
317 }
318
319 /* Put the big endian representation of the bytes to be examined
320 in the temporary buffers for examination. */
321
322 if (info->endian == BFD_ENDIAN_BIG)
323 {
324 indicator16[0] = buf[0];
325 indicatorcop32[0] = buf[0];
326 indicatorcop32[1] = buf[1];
327 }
328 else
329 {
330 indicator16[0] = buf[1];
331 indicatorcop32[0] = buf[1];
332 indicatorcop32[1] = buf[0];
333 }
334
335 /* If the two high order bits are 00, 01 or 10, we have a 16 bit
336 core insn and a 48 bit copro insn. */
337
338 if ((indicator16[0] & 0x80) && (indicator16[0] & 0x40))
339 {
340 if ((indicatorcop32[0] & 0xf0) == 0xf0 && (indicatorcop32[1] & 0x07) == 0x07)
341 {
342 /* We have a 32 bit copro insn. */
343 corebuflength = 0;
344 /* All 4 4ytes are one copro insn. */
345 cop1buflength = 4;
346 }
347 else
348 {
349 /* We have a 32 bit core. */
350 corebuflength = 4;
351 cop1buflength = 0;
352 }
353 }
354 else
355 {
356 /* We have a 16 bit core insn and a 16 bit copro insn. */
357 corebuflength = 2;
358 cop1buflength = 2;
359 }
360
361 /* Now we have the distrubution set. Print them out. */
362 status = mep_print_vliw_insns (cd, pc, info, buf, corebuflength,
363 cop1buflength, cop2buflength);
364
365 return status;
366}
367
368static int
369mep_examine_vliw64_insns (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info)
370{
371 int status;
372 int buflength;
373 int corebuflength;
374 int cop1buflength;
375 int cop2buflength;
376 bfd_byte buf[CGEN_MAX_INSN_SIZE];
377 char indicator16[1];
378 char indicator64[4];
379
380 /* At this time we're not supporting internally parallel
381 coprocessors, so cop2buflength will always be 0. */
382 cop2buflength = 0;
383
384 /* Read in 64 bits. */
385 buflength = 8; /* VLIW insn spans 8 bytes. */
386 status = (*info->read_memory_func) (pc, buf, buflength, info);
387
388 if (status != 0)
389 {
390 (*info->memory_error_func) (status, pc, info);
391 return -1;
392 }
393
394 /* We have all 64 bits in the buffer now. We have to figure out
395 what combination of instruction sizes are present. The two
396 high order bits will indicate whether or not we have a 16 bit
397 core insn or not. If not, then we have to look at the 7,8th
398 bytes to tell whether we have 64 bit copro insn or a 32 bit
399 core insn with a 32 bit copro insn. Endianness will make a
400 difference here. */
401
402 /* Put the big endian representation of the bytes to be examined
403 in the temporary buffers for examination. */
404
405 /* indicator16[0] = buf[0]; */
406 if (info->endian == BFD_ENDIAN_BIG)
407 {
408 indicator16[0] = buf[0];
409 indicator64[0] = buf[0];
410 indicator64[1] = buf[1];
411 indicator64[2] = buf[2];
412 indicator64[3] = buf[3];
413 }
414 else
415 {
416 indicator16[0] = buf[1];
417 indicator64[0] = buf[1];
418 indicator64[1] = buf[0];
419 indicator64[2] = buf[3];
420 indicator64[3] = buf[2];
421 }
422
423 /* If the two high order bits are 00, 01 or 10, we have a 16 bit
424 core insn and a 48 bit copro insn. */
425
426 if ((indicator16[0] & 0x80) && (indicator16[0] & 0x40))
427 {
428 if ((indicator64[0] & 0xf0) == 0xf0 && (indicator64[1] & 0x07) == 0x07
429 && ((indicator64[2] & 0xfe) != 0xf0 || (indicator64[3] & 0xf4) != 0))
430 {
431 /* We have a 64 bit copro insn. */
432 corebuflength = 0;
433 /* All 8 bytes are one copro insn. */
434 cop1buflength = 8;
435 }
436 else
437 {
438 /* We have a 32 bit core insn and a 32 bit copro insn. */
439 corebuflength = 4;
440 cop1buflength = 4;
441 }
442 }
443 else
444 {
445 /* We have a 16 bit core insn and a 48 bit copro insn. */
446 corebuflength = 2;
447 cop1buflength = 6;
448 }
449
450 /* Now we have the distrubution set. Print them out. */
451 status = mep_print_vliw_insns (cd, pc, info, buf, corebuflength,
452 cop1buflength, cop2buflength);
453
454 return status;
455}
456
3526b680
DD		 457#ifdef MEP_IVC2_SUPPORTED
458
459static int
460print_slot_insn (CGEN_CPU_DESC cd,
461 bfd_vma pc,
462 disassemble_info *info,
463 SLOTS_ATTR slot,
464 bfd_byte *buf)
465{
466 const CGEN_INSN_LIST *insn_list;
467 CGEN_INSN_INT insn_value;
468 CGEN_EXTRACT_INFO ex_info;
469
470 insn_value = cgen_get_insn_value (cd, buf, 32);
471
472 /* Fill in ex_info fields like read_insn would. Don't actually call
473 read_insn, since the incoming buffer is already read (and possibly
474 modified a la m32r). */
475 ex_info.valid = (1 << 8) - 1;
476 ex_info.dis_info = info;
477 ex_info.insn_bytes = buf;
478
479 /* The instructions are stored in hash lists.
480 Pick the first one and keep trying until we find the right one. */
481
482 insn_list = CGEN_DIS_LOOKUP_INSN (cd, (char *) buf, insn_value);
483 while (insn_list != NULL)
484 {
485 const CGEN_INSN *insn = insn_list->insn;
486 CGEN_FIELDS fields;
487 int length;
488
489 if ((CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_CONFIG)
490 && CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_CONFIG) != MEP_CONFIG)
491 || ! (CGEN_ATTR_CGEN_INSN_SLOTS_VALUE (CGEN_INSN_ATTRS (insn)) & (1 << slot)))
492 {
493 insn_list = CGEN_DIS_NEXT_INSN (insn_list);
494 continue;
495 }
496
497 if ((insn_value & CGEN_INSN_BASE_MASK (insn))
498 == CGEN_INSN_BASE_VALUE (insn))
499 {
500 /* Printing is handled in two passes. The first pass parses the
501 machine insn and extracts the fields. The second pass prints
502 them. */
503
504 length = CGEN_EXTRACT_FN (cd, insn)
505 (cd, insn, &ex_info, insn_value, &fields, pc);
506
507 /* Length < 0 -> error. */
508 if (length < 0)
509 return length;
510 if (length > 0)
511 {
512 CGEN_PRINT_FN (cd, insn) (cd, info, insn, &fields, pc, length);
513 /* Length is in bits, result is in bytes. */
514 return length / 8;
515 }
516 }
517
518 insn_list = CGEN_DIS_NEXT_INSN (insn_list);
519 }
520
521 if (slot == SLOTS_P0S)
522 (*info->fprintf_func) (info->stream, "*unknown-p0s*");
523 else if (slot == SLOTS_P0)
524 (*info->fprintf_func) (info->stream, "*unknown-p0*");
525 else if (slot == SLOTS_P1)
526 (*info->fprintf_func) (info->stream, "*unknown-p1*");
527 else if (slot == SLOTS_C3)
528 (*info->fprintf_func) (info->stream, "*unknown-c3*");
529 return 0;
530}
531
532static int
533mep_examine_ivc2_insns (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, bfd_vma pc ATTRIBUTE_UNUSED, disassemble_info *info ATTRIBUTE_UNUSED)
534{
535 int status;
536 int buflength;
3526b680
DD		 537 bfd_byte buf[8];
538 bfd_byte insn[8];
539 int e;
540
3526b680
DD		 541 /* Read in 64 bits. */
542 buflength = 8; /* VLIW insn spans 8 bytes. */
543 status = (*info->read_memory_func) (pc, buf, buflength, info);
544
545 if (status != 0)
546 {
547 (*info->memory_error_func) (status, pc, info);
548 return -1;
549 }
550
551 if (info->endian == BFD_ENDIAN_LITTLE)
552 e = 1;
553 else
554 e = 0;
555
1d74713b 556 if (((unsigned char)buf[0^e] & 0xf0) < 0xc0)
3526b680
DD		 557 {
558 /* <--00--><--11--><--22--><--33--><--44--><--55--><--66--><--77--> */
559 /* V1 [-----core-----][--------p0s-------][------------p1------------] */
560
561 print_insn (cd, pc, info, buf, 2);
562
563 insn[0^e] = 0;
564 insn[1^e] = buf[2^e];
565 insn[2^e] = buf[3^e];
566 insn[3^e] = buf[4^e] & 0xf0;
567 (*info->fprintf_func) (info->stream, " + ");
568 print_slot_insn (cd, pc, info, SLOTS_P0S, insn);
569
570 insn[0^e] = buf[4^e] << 4 | buf[5^e] >> 4;
571 insn[1^e] = buf[5^e] << 4 | buf[6^e] >> 4;
572 insn[2^e] = buf[6^e] << 4 | buf[7^e] >> 4;
573 insn[3^e] = buf[7^e] << 4;
574 (*info->fprintf_func) (info->stream, " + ");
575 print_slot_insn (cd, pc, info, SLOTS_P1, insn);
576 }
577 else if ((buf[0^e] & 0xf0) == 0xf0 && (buf[1^e] & 0x0f) == 0x07)
578 {
579 /* <--00--><--11--><--22--><--33--><--44--><--55--><--66--><--77--> */
580 /* V3 1111[--p0--]0111[--------p0--------][------------p1------------] */
581 /* 00000000111111112222222233333333 */
582
583 insn[0^e] = buf[0^e] << 4 | buf[1^e] >> 4;
584 insn[1^e] = buf[2^e];
585 insn[2^e] = buf[3^e];
586 insn[3^e] = buf[4^e] & 0xf0;
587 print_slot_insn (cd, pc, info, SLOTS_P0, insn);
588
589 insn[0^e] = buf[4^e] << 4 | buf[5^e] >> 4;
590 insn[1^e] = buf[5^e] << 4 | buf[6^e] >> 4;
591 insn[2^e] = buf[6^e] << 4 | buf[7^e] >> 4;
592 insn[3^e] = buf[7^e] << 4;
593 (*info->fprintf_func) (info->stream, " + ");
594 print_slot_insn (cd, pc, info, SLOTS_P1, insn);
595 }
596 else
597 {
598 /* <--00--><--11--><--22--><--33--><--44--><--55--><--66--><--77--> */
599 /* V2 [-------------core-------------]xxxx[------------p1------------] */
600 print_insn (cd, pc, info, buf, 4);
601
602 insn[0^e] = buf[4^e] << 4 | buf[5^e] >> 4;
603 insn[1^e] = buf[5^e] << 4 | buf[6^e] >> 4;
604 insn[2^e] = buf[6^e] << 4 | buf[7^e] >> 4;
605 insn[3^e] = buf[7^e] << 4;
606 (*info->fprintf_func) (info->stream, " + ");
607 print_slot_insn (cd, pc, info, SLOTS_P1, insn);
608 }
609
610 return 8;
611}
612
613#endif /* MEP_IVC2_SUPPORTED */
614
615/* This is a hack. SID calls this to update the disassembler as the
616 CPU changes modes. */
617static int mep_ivc2_disassemble_p = 0;
618static int mep_ivc2_vliw_disassemble_p = 0;
619
620void
621mep_print_insn_set_ivc2_mode (int ivc2_p, int vliw_p, int cfg_idx);
622void
623mep_print_insn_set_ivc2_mode (int ivc2_p, int vliw_p, int cfg_idx)
624{
625 mep_ivc2_disassemble_p = ivc2_p;
626 mep_ivc2_vliw_disassemble_p = vliw_p;
627 mep_config_index = cfg_idx;
628}
629
bd2f2e55
DB		 630static int
631mep_print_insn (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info)
632{
633 int status;
3526b680
DD		 634 int cop_type;
635 int ivc2 = 0;
636 static CGEN_ATTR_VALUE_BITSET_TYPE *ivc2_core_isa = NULL;
637
638 if (ivc2_core_isa == NULL)
639 {
640 /* IVC2 has some core-only coprocessor instructions. We
641 use COP32 to flag those, and COP64 for the VLIW ones,
642 since they have the same names. */
643 ivc2_core_isa = cgen_bitset_create (MAX_ISAS);
644 }
bd2f2e55
DB		 645
646 /* Extract and adapt to configuration number, if available. */
647 if (info->section && info->section->owner)
648 {
649 bfd *abfd = info->section->owner;
650 mep_config_index = abfd->tdata.elf_obj_data->elf_header->e_flags & EF_MEP_INDEX_MASK;
651 /* This instantly redefines MEP_CONFIG, MEP_OMASK, .... MEP_VLIW64 */
3526b680
DD		 652
653 cop_type = abfd->tdata.elf_obj_data->elf_header->e_flags & EF_MEP_COP_MASK;
654 if (cop_type == EF_MEP_COP_IVC2)
655 ivc2 = 1;
bd2f2e55
DB		 656 }
657
658 /* Picking the right ISA bitmask for the current context is tricky. */
659 if (info->section)
660 {
661 if (info->section->flags & SEC_MEP_VLIW)
662 {
3526b680
DD		 663#ifdef MEP_IVC2_SUPPORTED
664 if (ivc2)
665 {
666 /* ivc2 has its own way of selecting its functions. */
667 cd->isas = & MEP_CORE_ISA;
668 status = mep_examine_ivc2_insns (cd, pc, info);
669 }
bd2f2e55 670 else
3526b680
DD		 671#endif
672 /* Are we in 32 or 64 bit vliw mode? */
673 if (MEP_VLIW64)
674 status = mep_examine_vliw64_insns (cd, pc, info);
675 else
676 status = mep_examine_vliw32_insns (cd, pc, info);
bd2f2e55
DB		 677 /* Both the above branches set their own isa bitmasks. */
678 }
679 else
680 {
3526b680
DD		 681 if (ivc2)
682 {
683 cgen_bitset_clear (ivc2_core_isa);
684 cgen_bitset_union (ivc2_core_isa, &MEP_CORE_ISA, ivc2_core_isa);
685 cgen_bitset_union (ivc2_core_isa, &MEP_COP32_ISA, ivc2_core_isa);
686 cd->isas = ivc2_core_isa;
687 }
688 else
689 cd->isas = & MEP_CORE_ISA;
bd2f2e55
DB		 690 status = default_print_insn (cd, pc, info);
691 }
692 }
693 else /* sid or gdb */
694 {
3526b680
DD		 695#ifdef MEP_IVC2_SUPPORTED
696 if (mep_ivc2_disassemble_p)
697 {
698 if (mep_ivc2_vliw_disassemble_p)
699 {
700 cd->isas = & MEP_CORE_ISA;
701 status = mep_examine_ivc2_insns (cd, pc, info);
702 return status;
703 }
704 else
705 {
706 if (ivc2)
707 cd->isas = ivc2_core_isa;
708 }
709 }
710#endif
711
bd2f2e55
DB		 712 status = default_print_insn (cd, pc, info);
713 }
714
715 return status;
716}
717
718
719/* -- opc.c */
720
721void mep_cgen_print_operand
722 (CGEN_CPU_DESC, int, PTR, CGEN_FIELDS *, void const *, bfd_vma, int);
723
724/* Main entry point for printing operands.
725 XINFO is a `void *' and not a `disassemble_info *' to not put a requirement
726 of dis-asm.h on cgen.h.
727
728 This function is basically just a big switch statement. Earlier versions
729 used tables to look up the function to use, but
730 - if the table contains both assembler and disassembler functions then
731 the disassembler contains much of the assembler and vice-versa,
732 - there's a lot of inlining possibilities as things grow,
733 - using a switch statement avoids the function call overhead.
734
735 This function could be moved into `print_insn_normal', but keeping it
736 separate makes clear the interface between `print_insn_normal' and each of
737 the handlers. */
738
739void
740mep_cgen_print_operand (CGEN_CPU_DESC cd,
741 int opindex,
742 void * xinfo,
743 CGEN_FIELDS *fields,
744 void const *attrs ATTRIBUTE_UNUSED,
745 bfd_vma pc,
746 int length)
747{
748 disassemble_info *info = (disassemble_info *) xinfo;
749
750 switch (opindex)
751 {
752 case MEP_OPERAND_ADDR24A4 :
753 print_normal (cd, info, fields->f_24u8a4n, 0|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
754 break;
40493983
DD		 755 case MEP_OPERAND_C5RMUIMM20 :
756 print_normal (cd, info, fields->f_c5_rmuimm20, 0|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
757 break;
758 case MEP_OPERAND_C5RNMUIMM24 :
759 print_normal (cd, info, fields->f_c5_rnmuimm24, 0|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
760 break;
bd2f2e55
DB		 761 case MEP_OPERAND_CALLNUM :
762 print_normal (cd, info, fields->f_callnum, 0|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
763 break;
764 case MEP_OPERAND_CCCC :
765 print_normal (cd, info, fields->f_rm, 0, pc, length);
766 break;
767 case MEP_OPERAND_CCRN :
768 print_keyword (cd, info, & mep_cgen_opval_h_ccr, fields->f_ccrn, 0|(1<<CGEN_OPERAND_VIRTUAL));
769 break;
40493983
DD		 770 case MEP_OPERAND_CDISP10 :
771 print_normal (cd, info, fields->f_cdisp10, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
bd2f2e55 772 break;
40493983
DD		 773 case MEP_OPERAND_CDISP10A2 :
774 print_normal (cd, info, fields->f_cdisp10, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
bd2f2e55 775 break;
40493983
DD		 776 case MEP_OPERAND_CDISP10A4 :
777 print_normal (cd, info, fields->f_cdisp10, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
bd2f2e55 778 break;
40493983
DD		 779 case MEP_OPERAND_CDISP10A8 :
780 print_normal (cd, info, fields->f_cdisp10, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
781 break;
782 case MEP_OPERAND_CDISP12 :
783 print_normal (cd, info, fields->f_12s20, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
bd2f2e55
DB		 784 break;
785 case MEP_OPERAND_CIMM4 :
786 print_normal (cd, info, fields->f_rn, 0, pc, length);
787 break;
788 case MEP_OPERAND_CIMM5 :
789 print_normal (cd, info, fields->f_5u24, 0, pc, length);
790 break;
791 case MEP_OPERAND_CODE16 :
792 print_normal (cd, info, fields->f_16u16, 0, pc, length);
793 break;
794 case MEP_OPERAND_CODE24 :
795 print_normal (cd, info, fields->f_24u4n, 0|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
796 break;
797 case MEP_OPERAND_CP_FLAG :
798 print_keyword (cd, info, & mep_cgen_opval_h_ccr, 0, 0);
799 break;
800 case MEP_OPERAND_CRN :
801 print_keyword (cd, info, & mep_cgen_opval_h_cr, fields->f_crn, 0);
802 break;
803 case MEP_OPERAND_CRN64 :
804 print_keyword (cd, info, & mep_cgen_opval_h_cr64, fields->f_crn, 0);
805 break;
806 case MEP_OPERAND_CRNX :
807 print_keyword (cd, info, & mep_cgen_opval_h_cr, fields->f_crnx, 0|(1<<CGEN_OPERAND_VIRTUAL));
808 break;
809 case MEP_OPERAND_CRNX64 :
810 print_keyword (cd, info, & mep_cgen_opval_h_cr64, fields->f_crnx, 0|(1<<CGEN_OPERAND_VIRTUAL));
811 break;
3526b680
DD		 812 case MEP_OPERAND_CROC :
813 print_keyword (cd, info, & mep_cgen_opval_h_cr64, fields->f_ivc2_5u7, 0);
814 break;
815 case MEP_OPERAND_CROP :
816 print_keyword (cd, info, & mep_cgen_opval_h_cr64, fields->f_ivc2_5u23, 0);
817 break;
818 case MEP_OPERAND_CRPC :
819 print_keyword (cd, info, & mep_cgen_opval_h_cr64, fields->f_ivc2_5u26, 0);
820 break;
821 case MEP_OPERAND_CRPP :
822 print_keyword (cd, info, & mep_cgen_opval_h_cr64, fields->f_ivc2_5u18, 0);
823 break;
824 case MEP_OPERAND_CRQC :
825 print_keyword (cd, info, & mep_cgen_opval_h_cr64, fields->f_ivc2_5u21, 0);
826 break;
827 case MEP_OPERAND_CRQP :
828 print_keyword (cd, info, & mep_cgen_opval_h_cr64, fields->f_ivc2_5u13, 0);
829 break;
bd2f2e55
DB		 830 case MEP_OPERAND_CSRN :
831 print_keyword (cd, info, & mep_cgen_opval_h_csr, fields->f_csrn, 0|(1<<CGEN_OPERAND_VIRTUAL));
832 break;
833 case MEP_OPERAND_CSRN_IDX :
834 print_normal (cd, info, fields->f_csrn, 0|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
835 break;
836 case MEP_OPERAND_DBG :
837 print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
838 break;
839 case MEP_OPERAND_DEPC :
840 print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
841 break;
842 case MEP_OPERAND_EPC :
843 print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
844 break;
845 case MEP_OPERAND_EXC :
846 print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
847 break;
bd2f2e55
DB		 848 case MEP_OPERAND_HI :
849 print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
850 break;
3526b680
DD		 851 case MEP_OPERAND_IMM16P0 :
852 print_normal (cd, info, fields->f_ivc2_imm16p0, 0|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
853 break;
854 case MEP_OPERAND_IMM3P12 :
855 print_normal (cd, info, fields->f_ivc2_3u12, 0, pc, length);
856 break;
857 case MEP_OPERAND_IMM3P25 :
858 print_normal (cd, info, fields->f_ivc2_3u25, 0, pc, length);
859 break;
860 case MEP_OPERAND_IMM3P4 :
861 print_normal (cd, info, fields->f_ivc2_3u4, 0, pc, length);
862 break;
863 case MEP_OPERAND_IMM3P5 :
864 print_normal (cd, info, fields->f_ivc2_3u5, 0, pc, length);
865 break;
866 case MEP_OPERAND_IMM3P9 :
867 print_normal (cd, info, fields->f_ivc2_3u9, 0, pc, length);
868 break;
869 case MEP_OPERAND_IMM4P10 :
870 print_normal (cd, info, fields->f_ivc2_4u10, 0, pc, length);
871 break;
872 case MEP_OPERAND_IMM4P4 :
873 print_normal (cd, info, fields->f_ivc2_4u4, 0, pc, length);
874 break;
875 case MEP_OPERAND_IMM4P8 :
876 print_normal (cd, info, fields->f_ivc2_4u8, 0, pc, length);
877 break;
878 case MEP_OPERAND_IMM5P23 :
879 print_normal (cd, info, fields->f_ivc2_5u23, 0, pc, length);
880 break;
881 case MEP_OPERAND_IMM5P3 :
882 print_normal (cd, info, fields->f_ivc2_5u3, 0, pc, length);
883 break;
884 case MEP_OPERAND_IMM5P7 :
885 print_normal (cd, info, fields->f_ivc2_5u7, 0, pc, length);
886 break;
887 case MEP_OPERAND_IMM5P8 :
888 print_normal (cd, info, fields->f_ivc2_5u8, 0, pc, length);
889 break;
890 case MEP_OPERAND_IMM6P2 :
891 print_normal (cd, info, fields->f_ivc2_6u2, 0, pc, length);
892 break;
893 case MEP_OPERAND_IMM6P6 :
894 print_normal (cd, info, fields->f_ivc2_6u6, 0, pc, length);
895 break;
896 case MEP_OPERAND_IMM8P0 :
897 print_normal (cd, info, fields->f_ivc2_8u0, 0, pc, length);
898 break;
899 case MEP_OPERAND_IMM8P20 :
900 print_normal (cd, info, fields->f_ivc2_8u20, 0, pc, length);
901 break;
902 case MEP_OPERAND_IMM8P4 :
903 print_normal (cd, info, fields->f_ivc2_8u4, 0, pc, length);
904 break;
905 case MEP_OPERAND_IVC_X_0_2 :
906 print_normal (cd, info, fields->f_ivc2_2u0, 0, pc, length);
907 break;
908 case MEP_OPERAND_IVC_X_0_3 :
909 print_normal (cd, info, fields->f_ivc2_3u0, 0, pc, length);
910 break;
911 case MEP_OPERAND_IVC_X_0_4 :
912 print_normal (cd, info, fields->f_ivc2_4u0, 0, pc, length);
913 break;
914 case MEP_OPERAND_IVC_X_0_5 :
915 print_normal (cd, info, fields->f_ivc2_5u0, 0, pc, length);
916 break;
917 case MEP_OPERAND_IVC_X_6_1 :
918 print_normal (cd, info, fields->f_ivc2_1u6, 0, pc, length);
919 break;
920 case MEP_OPERAND_IVC_X_6_2 :
921 print_normal (cd, info, fields->f_ivc2_2u6, 0, pc, length);
922 break;
923 case MEP_OPERAND_IVC_X_6_3 :
924 print_normal (cd, info, fields->f_ivc2_3u6, 0, pc, length);
925 break;
dab97f24
DD		 926 case MEP_OPERAND_IVC2_ACC0_0 :
927 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
928 break;
929 case MEP_OPERAND_IVC2_ACC0_1 :
930 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
931 break;
932 case MEP_OPERAND_IVC2_ACC0_2 :
933 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
934 break;
935 case MEP_OPERAND_IVC2_ACC0_3 :
936 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
937 break;
938 case MEP_OPERAND_IVC2_ACC0_4 :
939 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
940 break;
941 case MEP_OPERAND_IVC2_ACC0_5 :
942 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
943 break;
944 case MEP_OPERAND_IVC2_ACC0_6 :
945 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
946 break;
947 case MEP_OPERAND_IVC2_ACC0_7 :
948 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
949 break;
950 case MEP_OPERAND_IVC2_ACC1_0 :
951 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
952 break;
953 case MEP_OPERAND_IVC2_ACC1_1 :
954 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
955 break;
956 case MEP_OPERAND_IVC2_ACC1_2 :
957 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
958 break;
959 case MEP_OPERAND_IVC2_ACC1_3 :
960 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
961 break;
962 case MEP_OPERAND_IVC2_ACC1_4 :
963 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
964 break;
965 case MEP_OPERAND_IVC2_ACC1_5 :
966 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
967 break;
968 case MEP_OPERAND_IVC2_ACC1_6 :
969 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
970 break;
971 case MEP_OPERAND_IVC2_ACC1_7 :
972 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
973 break;
974 case MEP_OPERAND_IVC2_CC :
975 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
976 break;
977 case MEP_OPERAND_IVC2_COFA0 :
978 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
979 break;
980 case MEP_OPERAND_IVC2_COFA1 :
981 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
982 break;
983 case MEP_OPERAND_IVC2_COFR0 :
984 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
985 break;
986 case MEP_OPERAND_IVC2_COFR1 :
987 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
988 break;
989 case MEP_OPERAND_IVC2_CSAR0 :
990 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
991 break;
992 case MEP_OPERAND_IVC2_CSAR1 :
993 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
994 break;
1d74713b 995 case MEP_OPERAND_IVC2C3CCRN :
2f3565a3 996 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, fields->f_ivc2_ccrn_c3, 0|(1<<CGEN_OPERAND_VIRTUAL));
1d74713b 997 break;
3526b680 998 case MEP_OPERAND_IVC2CCRN :
1d74713b 999 print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, fields->f_ivc2_ccrn, 0|(1<<CGEN_OPERAND_VIRTUAL));
3526b680
DD		 1000 break;
1001 case MEP_OPERAND_IVC2CRN :
1002 print_keyword (cd, info, & mep_cgen_opval_h_cr64, fields->f_ivc2_crnx, 0|(1<<CGEN_OPERAND_VIRTUAL));
1003 break;
1004 case MEP_OPERAND_IVC2RM :
1005 print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_ivc2_crm, 0);
1006 break;
bd2f2e55
DB		 1007 case MEP_OPERAND_LO :
1008 print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
1009 break;
1010 case MEP_OPERAND_LP :
1011 print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
1012 break;
1013 case MEP_OPERAND_MB0 :
1014 print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
1015 break;
1016 case MEP_OPERAND_MB1 :
1017 print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
1018 break;
1019 case MEP_OPERAND_ME0 :
1020 print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
1021 break;
1022 case MEP_OPERAND_ME1 :
1023 print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
1024 break;
1025 case MEP_OPERAND_NPC :
1026 print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
1027 break;
1028 case MEP_OPERAND_OPT :
1029 print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
1030 break;
1031 case MEP_OPERAND_PCABS24A2 :
1032 print_address (cd, info, fields->f_24u5a2n, 0|(1<<CGEN_OPERAND_ABS_ADDR)|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
1033 break;
1034 case MEP_OPERAND_PCREL12A2 :
1035 print_address (cd, info, fields->f_12s4a2, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_RELAX)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
1036 break;
1037 case MEP_OPERAND_PCREL17A2 :
1038 print_address (cd, info, fields->f_17s16a2, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_RELAX)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
1039 break;
1040 case MEP_OPERAND_PCREL24A2 :
1041 print_address (cd, info, fields->f_24s5a2n, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_PCREL_ADDR)|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
1042 break;
1043 case MEP_OPERAND_PCREL8A2 :
1044 print_address (cd, info, fields->f_8s8a2, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_RELAX)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
1045 break;
1046 case MEP_OPERAND_PSW :
1047 print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
1048 break;
1049 case MEP_OPERAND_R0 :
1050 print_keyword (cd, info, & mep_cgen_opval_h_gpr, 0, 0);
1051 break;
1052 case MEP_OPERAND_R1 :
1053 print_keyword (cd, info, & mep_cgen_opval_h_gpr, 0, 0);
1054 break;
1055 case MEP_OPERAND_RL :
1056 print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rl, 0);
1057 break;
40493983
DD		 1058 case MEP_OPERAND_RL5 :
1059 print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rl5, 0);
1060 break;
bd2f2e55
DB		 1061 case MEP_OPERAND_RM :
1062 print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rm, 0);
1063 break;
1064 case MEP_OPERAND_RMA :
1065 print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rm, 0);
1066 break;
1067 case MEP_OPERAND_RN :
1068 print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn, 0);
1069 break;
1070 case MEP_OPERAND_RN3 :
1071 print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn3, 0);
1072 break;
1073 case MEP_OPERAND_RN3C :
1074 print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn3, 0);
1075 break;
1076 case MEP_OPERAND_RN3L :
1077 print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn3, 0);
1078 break;
1079 case MEP_OPERAND_RN3S :
1080 print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn3, 0);
1081 break;
1082 case MEP_OPERAND_RN3UC :
1083 print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn3, 0);
1084 break;
1085 case MEP_OPERAND_RN3UL :
1086 print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn3, 0);
1087 break;
1088 case MEP_OPERAND_RN3US :
1089 print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn3, 0);
1090 break;
1091 case MEP_OPERAND_RNC :
1092 print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn, 0);
1093 break;
1094 case MEP_OPERAND_RNL :
1095 print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn, 0);
1096 break;
1097 case MEP_OPERAND_RNS :
1098 print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn, 0);
1099 break;
1100 case MEP_OPERAND_RNUC :
1101 print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn, 0);
1102 break;
1103 case MEP_OPERAND_RNUL :
1104 print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn, 0);
1105 break;
1106 case MEP_OPERAND_RNUS :
1107 print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn, 0);
1108 break;
1109 case MEP_OPERAND_SAR :
1110 print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
1111 break;
1112 case MEP_OPERAND_SDISP16 :
1113 print_normal (cd, info, fields->f_16s16, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
1114 break;
1115 case MEP_OPERAND_SIMM16 :
1116 print_normal (cd, info, fields->f_16s16, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
1117 break;
3526b680
DD		 1118 case MEP_OPERAND_SIMM16P0 :
1119 print_normal (cd, info, fields->f_ivc2_simm16p0, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
1120 break;
bd2f2e55
DB		 1121 case MEP_OPERAND_SIMM6 :
1122 print_normal (cd, info, fields->f_6s8, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
1123 break;
1124 case MEP_OPERAND_SIMM8 :
1125 print_normal (cd, info, fields->f_8s8, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_RELOC_IMPLIES_OVERFLOW), pc, length);
1126 break;
3526b680
DD		 1127 case MEP_OPERAND_SIMM8P0 :
1128 print_normal (cd, info, fields->f_ivc2_8s0, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
1129 break;
1d74713b
DD		 1130 case MEP_OPERAND_SIMM8P20 :
1131 print_normal (cd, info, fields->f_ivc2_8s20, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
1132 break;
3526b680
DD		 1133 case MEP_OPERAND_SIMM8P4 :
1134 print_normal (cd, info, fields->f_ivc2_8s4, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
1135 break;
bd2f2e55
DB		 1136 case MEP_OPERAND_SP :
1137 print_keyword (cd, info, & mep_cgen_opval_h_gpr, 0, 0);
1138 break;
1139 case MEP_OPERAND_SPR :
1140 print_spreg (cd, info, & mep_cgen_opval_h_gpr, 0, 0);
1141 break;
1142 case MEP_OPERAND_TP :
1143 print_keyword (cd, info, & mep_cgen_opval_h_gpr, 0, 0);
1144 break;
1145 case MEP_OPERAND_TPR :
1146 print_tpreg (cd, info, & mep_cgen_opval_h_gpr, 0, 0);
1147 break;
1148 case MEP_OPERAND_UDISP2 :
1149 print_normal (cd, info, fields->f_2u6, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
1150 break;
1151 case MEP_OPERAND_UDISP7 :
1152 print_normal (cd, info, fields->f_7u9, 0, pc, length);
1153 break;
1154 case MEP_OPERAND_UDISP7A2 :
1155 print_normal (cd, info, fields->f_7u9a2, 0, pc, length);
1156 break;
1157 case MEP_OPERAND_UDISP7A4 :
1158 print_normal (cd, info, fields->f_7u9a4, 0, pc, length);
1159 break;
1160 case MEP_OPERAND_UIMM16 :
1161 print_normal (cd, info, fields->f_16u16, 0, pc, length);
1162 break;
1163 case MEP_OPERAND_UIMM2 :
1164 print_normal (cd, info, fields->f_2u10, 0, pc, length);
1165 break;
1166 case MEP_OPERAND_UIMM24 :
1167 print_normal (cd, info, fields->f_24u8n, 0|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
1168 break;
1169 case MEP_OPERAND_UIMM3 :
1170 print_normal (cd, info, fields->f_3u5, 0, pc, length);
1171 break;
1172 case MEP_OPERAND_UIMM4 :
1173 print_normal (cd, info, fields->f_4u8, 0, pc, length);
1174 break;
1175 case MEP_OPERAND_UIMM5 :
1176 print_normal (cd, info, fields->f_5u8, 0, pc, length);
1177 break;
1178 case MEP_OPERAND_UIMM7A4 :
1179 print_normal (cd, info, fields->f_7u9a4, 0, pc, length);
1180 break;
1181 case MEP_OPERAND_ZERO :
1182 print_normal (cd, info, 0, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
1183 break;
1184
1185 default :
1186 /* xgettext:c-format */
a6743a54
AM		 1187 opcodes_error_handler
1188 (_("internal error: unrecognized field %d while printing insn"),
1189 opindex);
1190 abort ();
bd2f2e55
DB		 1191 }
1192}
1193
43e65147 1194cgen_print_fn * const mep_cgen_print_handlers[] =
bd2f2e55
DB		 1195{
1196 print_insn_normal,
1197};
1198
1199
1200void
1201mep_cgen_init_dis (CGEN_CPU_DESC cd)
1202{
1203 mep_cgen_init_opcode_table (cd);
1204 mep_cgen_init_ibld_table (cd);
1205 cd->print_handlers = & mep_cgen_print_handlers[0];
1206 cd->print_operand = mep_cgen_print_operand;
1207}
1208
1209\f
1210/* Default print handler. */
1211
1212static void
1213print_normal (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
1214 void *dis_info,
1215 long value,
1216 unsigned int attrs,
1217 bfd_vma pc ATTRIBUTE_UNUSED,
1218 int length ATTRIBUTE_UNUSED)
1219{
1220 disassemble_info *info = (disassemble_info *) dis_info;
1221
bd2f2e55
DB		 1222 /* Print the operand as directed by the attributes. */
1223 if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
1224 ; /* nothing to do */
1225 else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
1226 (*info->fprintf_func) (info->stream, "%ld", value);
1227 else
1228 (*info->fprintf_func) (info->stream, "0x%lx", value);
1229}
1230
1231/* Default address handler. */
1232
1233static void
1234print_address (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
1235 void *dis_info,
1236 bfd_vma value,
1237 unsigned int attrs,
1238 bfd_vma pc ATTRIBUTE_UNUSED,
1239 int length ATTRIBUTE_UNUSED)
1240{
1241 disassemble_info *info = (disassemble_info *) dis_info;
1242
bd2f2e55
DB		 1243 /* Print the operand as directed by the attributes. */
1244 if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
1245 ; /* Nothing to do. */
1246 else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_PCREL_ADDR))
1247 (*info->print_address_func) (value, info);
1248 else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_ABS_ADDR))
1249 (*info->print_address_func) (value, info);
1250 else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
1251 (*info->fprintf_func) (info->stream, "%ld", (long) value);
1252 else
1253 (*info->fprintf_func) (info->stream, "0x%lx", (long) value);
1254}
1255
1256/* Keyword print handler. */
1257
1258static void
1259print_keyword (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
1260 void *dis_info,
1261 CGEN_KEYWORD *keyword_table,
1262 long value,
1263 unsigned int attrs ATTRIBUTE_UNUSED)
1264{
1265 disassemble_info *info = (disassemble_info *) dis_info;
1266 const CGEN_KEYWORD_ENTRY *ke;
1267
1268 ke = cgen_keyword_lookup_value (keyword_table, value);
1269 if (ke != NULL)
1270 (*info->fprintf_func) (info->stream, "%s", ke->name);
1271 else
1272 (*info->fprintf_func) (info->stream, "???");
1273}
1274\f
1275/* Default insn printer.
1276
1277 DIS_INFO is defined as `void *' so the disassembler needn't know anything
1278 about disassemble_info. */
1279
1280static void
1281print_insn_normal (CGEN_CPU_DESC cd,
1282 void *dis_info,
1283 const CGEN_INSN *insn,
1284 CGEN_FIELDS *fields,
1285 bfd_vma pc,
1286 int length)
1287{
1288 const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
1289 disassemble_info *info = (disassemble_info *) dis_info;
1290 const CGEN_SYNTAX_CHAR_TYPE *syn;
1291
1292 CGEN_INIT_PRINT (cd);
1293
1294 for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn)
1295 {
1296 if (CGEN_SYNTAX_MNEMONIC_P (*syn))
1297 {
1298 (*info->fprintf_func) (info->stream, "%s", CGEN_INSN_MNEMONIC (insn));
1299 continue;
1300 }
1301 if (CGEN_SYNTAX_CHAR_P (*syn))
1302 {
1303 (*info->fprintf_func) (info->stream, "%c", CGEN_SYNTAX_CHAR (*syn));
1304 continue;
1305 }
1306
1307 /* We have an operand. */
1308 mep_cgen_print_operand (cd, CGEN_SYNTAX_FIELD (*syn), info,
1309 fields, CGEN_INSN_ATTRS (insn), pc, length);
1310 }
1311}
1312\f
1313/* Subroutine of print_insn. Reads an insn into the given buffers and updates
1314 the extract info.
1315 Returns 0 if all is well, non-zero otherwise. */
1316
1317static int
1318read_insn (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
1319 bfd_vma pc,
1320 disassemble_info *info,
1321 bfd_byte *buf,
1322 int buflen,
1323 CGEN_EXTRACT_INFO *ex_info,
1324 unsigned long *insn_value)
1325{
1326 int status = (*info->read_memory_func) (pc, buf, buflen, info);
1327
1328 if (status != 0)
1329 {
1330 (*info->memory_error_func) (status, pc, info);
1331 return -1;
1332 }
1333
1334 ex_info->dis_info = info;
1335 ex_info->valid = (1 << buflen) - 1;
1336 ex_info->insn_bytes = buf;
1337
1338 *insn_value = bfd_get_bits (buf, buflen * 8, info->endian == BFD_ENDIAN_BIG);
1339 return 0;
1340}
1341
1342/* Utility to print an insn.
1343 BUF is the base part of the insn, target byte order, BUFLEN bytes long.
1344 The result is the size of the insn in bytes or zero for an unknown insn
1345 or -1 if an error occurs fetching data (memory_error_func will have
1346 been called). */
1347
1348static int
1349print_insn (CGEN_CPU_DESC cd,
1350 bfd_vma pc,
1351 disassemble_info *info,
1352 bfd_byte *buf,
1353 unsigned int buflen)
1354{
1355 CGEN_INSN_INT insn_value;
1356 const CGEN_INSN_LIST *insn_list;
1357 CGEN_EXTRACT_INFO ex_info;
1358 int basesize;
1359
1360 /* Extract base part of instruction, just in case CGEN_DIS_* uses it. */
1361 basesize = cd->base_insn_bitsize < buflen * 8 ?
1362 cd->base_insn_bitsize : buflen * 8;
1363 insn_value = cgen_get_insn_value (cd, buf, basesize);
1364
1365
1366 /* Fill in ex_info fields like read_insn would. Don't actually call
1367 read_insn, since the incoming buffer is already read (and possibly
1368 modified a la m32r). */
1369 ex_info.valid = (1 << buflen) - 1;
1370 ex_info.dis_info = info;
1371 ex_info.insn_bytes = buf;
1372
1373 /* The instructions are stored in hash lists.
1374 Pick the first one and keep trying until we find the right one. */
1375
1376 insn_list = CGEN_DIS_LOOKUP_INSN (cd, (char *) buf, insn_value);
1377 while (insn_list != NULL)
1378 {
1379 const CGEN_INSN *insn = insn_list->insn;
1380 CGEN_FIELDS fields;
1381 int length;
1382 unsigned long insn_value_cropped;
1383
43e65147 1384#ifdef CGEN_VALIDATE_INSN_SUPPORTED
bd2f2e55
DB		 1385 /* Not needed as insn shouldn't be in hash lists if not supported. */
1386 /* Supported by this cpu? */
1387 if (! mep_cgen_insn_supported (cd, insn))
1388 {
1389 insn_list = CGEN_DIS_NEXT_INSN (insn_list);
1390 continue;
1391 }
1392#endif
1393
1394 /* Basic bit mask must be correct. */
1395 /* ??? May wish to allow target to defer this check until the extract
1396 handler. */
1397
1398 /* Base size may exceed this instruction's size. Extract the
1399 relevant part from the buffer. */
1400 if ((unsigned) (CGEN_INSN_BITSIZE (insn) / 8) < buflen &&
1401 (unsigned) (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long))
43e65147 1402 insn_value_cropped = bfd_get_bits (buf, CGEN_INSN_BITSIZE (insn),
bd2f2e55
DB		 1403 info->endian == BFD_ENDIAN_BIG);
1404 else
1405 insn_value_cropped = insn_value;
1406
1407 if ((insn_value_cropped & CGEN_INSN_BASE_MASK (insn))
1408 == CGEN_INSN_BASE_VALUE (insn))
1409 {
1410 /* Printing is handled in two passes. The first pass parses the
1411 machine insn and extracts the fields. The second pass prints
1412 them. */
1413
1414 /* Make sure the entire insn is loaded into insn_value, if it
1415 can fit. */
1416 if (((unsigned) CGEN_INSN_BITSIZE (insn) > cd->base_insn_bitsize) &&
1417 (unsigned) (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long))
1418 {
1419 unsigned long full_insn_value;
1420 int rc = read_insn (cd, pc, info, buf,
1421 CGEN_INSN_BITSIZE (insn) / 8,
1422 & ex_info, & full_insn_value);
1423 if (rc != 0)
1424 return rc;
1425 length = CGEN_EXTRACT_FN (cd, insn)
1426 (cd, insn, &ex_info, full_insn_value, &fields, pc);
1427 }
1428 else
1429 length = CGEN_EXTRACT_FN (cd, insn)
1430 (cd, insn, &ex_info, insn_value_cropped, &fields, pc);
1431
1432 /* Length < 0 -> error. */
1433 if (length < 0)
1434 return length;
1435 if (length > 0)
1436 {
1437 CGEN_PRINT_FN (cd, insn) (cd, info, insn, &fields, pc, length);
1438 /* Length is in bits, result is in bytes. */
1439 return length / 8;
1440 }
1441 }
1442
1443 insn_list = CGEN_DIS_NEXT_INSN (insn_list);
1444 }
1445
1446 return 0;
1447}
1448
1449/* Default value for CGEN_PRINT_INSN.
1450 The result is the size of the insn in bytes or zero for an unknown insn
1451 or -1 if an error occured fetching bytes. */
1452
1453#ifndef CGEN_PRINT_INSN
1454#define CGEN_PRINT_INSN default_print_insn
1455#endif
1456
1457static int
1458default_print_insn (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info)
1459{
1460 bfd_byte buf[CGEN_MAX_INSN_SIZE];
1461 int buflen;
1462 int status;
1463
1464 /* Attempt to read the base part of the insn. */
1465 buflen = cd->base_insn_bitsize / 8;
1466 status = (*info->read_memory_func) (pc, buf, buflen, info);
1467
1468 /* Try again with the minimum part, if min < base. */
1469 if (status != 0 && (cd->min_insn_bitsize < cd->base_insn_bitsize))
1470 {
1471 buflen = cd->min_insn_bitsize / 8;
1472 status = (*info->read_memory_func) (pc, buf, buflen, info);
1473 }
1474
1475 if (status != 0)
1476 {
1477 (*info->memory_error_func) (status, pc, info);
1478 return -1;
1479 }
1480
1481 return print_insn (cd, pc, info, buf, buflen);
1482}
1483
1484/* Main entry point.
1485 Print one instruction from PC on INFO->STREAM.
1486 Return the size of the instruction (in bytes). */
1487
1488typedef struct cpu_desc_list
1489{
1490 struct cpu_desc_list *next;
1491 CGEN_BITSET *isa;
1492 int mach;
1493 int endian;
1494 CGEN_CPU_DESC cd;
1495} cpu_desc_list;
1496
1497int
1498print_insn_mep (bfd_vma pc, disassemble_info *info)
1499{
1500 static cpu_desc_list *cd_list = 0;
1501 cpu_desc_list *cl = 0;
1502 static CGEN_CPU_DESC cd = 0;
1503 static CGEN_BITSET *prev_isa;
1504 static int prev_mach;
1505 static int prev_endian;
1506 int length;
1507 CGEN_BITSET *isa;
1508 int mach;
1509 int endian = (info->endian == BFD_ENDIAN_BIG
1510 ? CGEN_ENDIAN_BIG
1511 : CGEN_ENDIAN_LITTLE);
1512 enum bfd_architecture arch;
1513
1514 /* ??? gdb will set mach but leave the architecture as "unknown" */
1515#ifndef CGEN_BFD_ARCH
1516#define CGEN_BFD_ARCH bfd_arch_mep
1517#endif
1518 arch = info->arch;
1519 if (arch == bfd_arch_unknown)
1520 arch = CGEN_BFD_ARCH;
43e65147 1521
bd2f2e55
DB		 1522 /* There's no standard way to compute the machine or isa number
1523 so we leave it to the target. */
1524#ifdef CGEN_COMPUTE_MACH
1525 mach = CGEN_COMPUTE_MACH (info);
1526#else
1527 mach = info->mach;
1528#endif
1529
1530#ifdef CGEN_COMPUTE_ISA
1531 {
1532 static CGEN_BITSET *permanent_isa;
1533
1534 if (!permanent_isa)
1535 permanent_isa = cgen_bitset_create (MAX_ISAS);
1536 isa = permanent_isa;
1537 cgen_bitset_clear (isa);
1538 cgen_bitset_add (isa, CGEN_COMPUTE_ISA (info));
1539 }
1540#else
103ebbc3 1541 isa = info->private_data;
bd2f2e55
DB		 1542#endif
1543
1544 /* If we've switched cpu's, try to find a handle we've used before */
1545 if (cd
1546 && (cgen_bitset_compare (isa, prev_isa) != 0
1547 || mach != prev_mach
1548 || endian != prev_endian))
1549 {
1550 cd = 0;
1551 for (cl = cd_list; cl; cl = cl->next)
1552 {
1553 if (cgen_bitset_compare (cl->isa, isa) == 0 &&
1554 cl->mach == mach &&
1555 cl->endian == endian)
1556 {
1557 cd = cl->cd;
1558 prev_isa = cd->isas;
1559 break;
1560 }
1561 }
43e65147 1562 }
bd2f2e55
DB		 1563
1564 /* If we haven't initialized yet, initialize the opcode table. */
1565 if (! cd)
1566 {
1567 const bfd_arch_info_type *arch_type = bfd_lookup_arch (arch, mach);
1568 const char *mach_name;
1569
1570 if (!arch_type)
1571 abort ();
1572 mach_name = arch_type->printable_name;
1573
1574 prev_isa = cgen_bitset_copy (isa);
1575 prev_mach = mach;
1576 prev_endian = endian;
1577 cd = mep_cgen_cpu_open (CGEN_CPU_OPEN_ISAS, prev_isa,
1578 CGEN_CPU_OPEN_BFDMACH, mach_name,
1579 CGEN_CPU_OPEN_ENDIAN, prev_endian,
1580 CGEN_CPU_OPEN_END);
1581 if (!cd)
1582 abort ();
1583
1584 /* Save this away for future reference. */
1585 cl = xmalloc (sizeof (struct cpu_desc_list));
1586 cl->cd = cd;
1587 cl->isa = prev_isa;
1588 cl->mach = mach;
1589 cl->endian = endian;
1590 cl->next = cd_list;
1591 cd_list = cl;
1592
1593 mep_cgen_init_dis (cd);
1594 }
1595
1596 /* We try to have as much common code as possible.
1597 But at this point some targets need to take over. */
1598 /* ??? Some targets may need a hook elsewhere. Try to avoid this,
1599 but if not possible try to move this hook elsewhere rather than
1600 have two hooks. */
1601 length = CGEN_PRINT_INSN (cd, pc, info);
1602 if (length > 0)
1603 return length;
1604 if (length < 0)
1605 return -1;
1606
1607 (*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
1608 return cd->default_insn_bitsize / 8;
1609}
GDB Binutils - Deliverables
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